Mix ground turkey, paprika, bread crumbs, and half of the diced onions. Form into meatballs, about 1" in size.
Saute remaining onions in olive oil for 2 minutes, until translucent. Add enough broth to raise the liquid to about 1" in the pan, and bring to a boil. Add the bay leaf.
Drop the meatballs into the pan, spacing them so they don't touch. Cover the pan and boil 10-15 minutes.
Add the remaining broth, carrots, spinach, and orzo. Bring to a boil again, cover and reduce heat. Simmer for 20 minutes, or until the orzo is plump and soft.